Filter



FIG. 1 is a front side perspective view of a filter showing our new design;

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a side elevational view thereof;

FIG. 6 is a side elevational view thereof opposite that shown in FIG. 5;

FIG. 7 is a back elevational view thereof opposite to that shown in FIG. 4;

FIG. 8 is a fragmentary section view taken along line 8--8 of FIG. 2; and,

FIG. 9 is a fragmentary section view taken along line 9--9 of FIG. 3. 

The ornamental design of a filter, as shown and described. 